arrow function in a fucntion code example

Example 1: arrow function javascript

const suma = (num1, num2) => num1+num2
console.log(suma(2,3));
//5

Example 2: arrow function map js

const exampleArray = ['aa','bbc','ccdd'];
console.log(exampleArray.map(a => a.length));
//Would print out [2,3,4]